GRP&sol;FRP Anti Slip Stair TreadsGRP Anti Slip Stair Treads are generally 38mm thickness complete with a high visibility yellow nosing&comma; offering higher safety standards in low lighting areas&period; A full range of stainless steel fixings are available for various installations&period; The GRP Anti Slip Stair Treads are then able to be securely fixed for long term safe operating conditions&period;Machs COMPOSITE can be cut to specific sizes to suit your installation&period;

Engineering specification

Pultruded machs® fiberglass structural shapes

Section 06610

Fiberglass reinforced plastics &lpar;FRP&rpar; fabrications

Pultruded fiberglass structural shapes

Part 1 general

1&period;0 general

1&period;1 references&colon;

The publications listed below &lpar;latest revision applicable&rpar; form a part of this specification to the extent referenced herein&period; The publications are referred to within the text by the designation only&period;

American society for testing and materials &lpar;ASTM&rpar; testMethods&colon;

The contractor shall furnish shop drawings of all fabricated structural systems and accessories in accordance with the provisions of this section&period;

The contractor shall furnish manufacturer's shop drawings clearly showing material sizes&comma; types&comma; styles&comma; part or catalog numbers&comma; complete details for the fabrication of and erection of components including&comma; but not limited to&comma; location&comma; lengths&comma; type and sizes of fasteners&comma; clip angles&comma; member sizes&comma; and connection details&period;

The contractor shall submit the manufacturer's published literature including structural design data&comma; structural properties data&comma; corrosion resistance tables&comma; certificates of compliance&comma; test reports as applicable&comma; and design calculations for systems not sized or designed in the contract documents&comma; sealed by a professional engineer&period;

The contractor may be requested to submit sample pieces of each item specified herein for acceptance by the engineer as to quality and color&period; Sample pieces shall be manufactured by the method to be used in the work&period;

1&period;3 quality assurance&colon;

All items to be provided under this section shall be furnished only by manufacturers having a minimum of ten &lpar;10&rpar; years experience in the design and manufacture of similar products and systems&period; Additionally&comma; if requested&comma; a record of at least five &lpar;5&rpar; previous&comma; separate&comma; similar successful installations in the last five &lpar;5&rpar; years shall be provided&period;

Manufacturer shall offer a 3 year limited warranty on all FRP products against defects in materials and workmanship&period;

Manufacturer shall be certified to the ISO 9001-2000 standard&period;

Manufacturer shall provide proof of certification from at least two other quality assurance programs for its facilities or products &lpar;UL&comma; dnv&comma; ABS&comma; uscg&comma; aarr&rpar;&period;

Manufacturer shall provide proof&comma; via independent testing less than six months old&comma; that materials proposed as a solution do not contain heavy metals in amounts greater than that allowed by current EPA requirements&period;

1&period;4 product delivery and storage

Delivery of materials&colon; Manufactured materials shall be delivered in original&comma; unbroken pallets&comma; packages&comma; containers&comma; or bundles bearing the label of the manufacturer&period; Adhesives&comma; resins and their catalysts and hardeners shall be crated or boxed separately and noted as such to facilitate their movement to a dry indoor storage facility&period;

Storage of products&colon; All materials shall be carefully handled to prevent them from abrasion&comma; cracking&comma; chipping&comma; twisting&comma; and other types of damage&period; Store adhesives&comma; resins and their catalysts and hardeners in dry indoor storage facilities between 70 and 85 degrees fahrenheit &lpar;21 to 29 degrees celsius&rpar; until they are required&period;

All structural shapes are to be manufactured by the pultrusion process with a glass content minimum of 45&percnt;&comma; maximum of 55&percnt; by weight&period; The structural shapes shall be composed of fiberglass reinforcement and resin in qualities&comma; quantities&comma; properties&comma; arrangements and dimensions as necessary to meet the design requirements and dimensions as specified in the contract documents&period;

All finished surfaces of FRP items and fabrications shall be smooth&comma; resinrich&comma; free of voids and without dry spots&comma; cracks&comma; crazes or unreinforced areas&period; All glass fibers shall be well covered with resin to protect against their exposure due to wear or weathering&period;

All pultruded structural shapes shall be further protected from ultraviolet &lpar;UV&rpar; attack with 1&rpar; integral UV inhibitors in the resin and 2&rpar; a synthetic surfacing veil to produce a resin rich surface&period;

All fire retardant FRP products shall have a tested flame spread rating of 25 or less per ASTM e84 tunnel test&period;

All shapes products shall be certified to ANSI standard 61 &lcub;use only if choosing a resin system that can be used to produce shapes to the standard 61 in sections 2&period;2 c&rcub;

Measurements&colon; Structural shapes supplied shall meet the minimum dimensional requirements as shown or specified&period; The contractor shall provide and&sol;or verify measurements in field for work fabricated to fit field conditions as required by manufacturer to complete the work&period; Determine correct size and locations of required holes or coping from field dimensions before structural shape fabrication&period;

Sealing&colon; All shop fabricated cuts or drilling shall be coated with vinyl ester resin to provide maximum corrosion resistance&period; All field fabricated cuts or drilling shall be coated similarly by the contractor in accordance with the manufacturer's instructions&period;

Shop inspection is authorized as required by the owner and shall be at owner's expense&period; The fabricator shall give ample notice to contractor prior to the beginning of any fabrication work so that inspection may be provided&period; The structural shapes shall be as free&comma; as commercially possible&comma; from visual defects such as foreign inclusions&comma; delamination&comma; blisters&comma; resin burns&comma; air bubbles and pits&period; Engineering specification

The contractor shall furnish&comma; fabricate &lpar;where necessary&rpar;&comma; and install all fiberglass reinforced plastic &lpar;FRP&rpar; items&comma; with all appurtenances&comma; accessories and incidentals necessary to produce a complete&comma; operable and serviceable installation as shown on the contract drawings and as specified herein&comma; and in accordance with the requirements of the contract documents&period;

1&period;2 references

The publications listed below &lpar;latest revision applicable&rpar; form a part of this specification to the extent referenced herein&period; The publications are referred to within the text by the designation only&period;

American society for testing and materials &lpar;ASTM&rpar; test methods&colon;

The contractor shall furnish shop drawings of all fabricated gratings and accessories in accordance with the provisions of this section&period;

The contractor shall furnish manufacturer's shop drawings clearly showing material sizes&comma; types&comma; styles&comma; part or catalog numbers&comma; complete details for the fabrication of and erection of components including&comma; but not limited to&comma; location&comma; lengths&comma; type and sizes of fasteners&comma; clip angles&comma; member sizes&comma; and connection details&period;

The contractor shall submit the manufacturer's published literature including structural design data&comma; structural properties data&comma; grating load&sol;deflection tables&comma; corrosion resistance tables&comma; certificates of compliance&comma; test reports as applicable&comma; concrete anchor systems and their allowable load tables&comma; and design calculations for systems not sized or designed in the contract documents&period;

The contractor shall submit sample pieces of each item specified herein for acceptance by the engineer as to quality and color&period; Sample pieces shall be manufactured by the method to be used in the work&period;

1&period;4 product delivery and storage

Delivery of materials&colon; Manufactured materials shall be delivered in original&comma; unbroken pallets&comma; packages&comma; containers&comma; or bundles bearing the label of the manufacturer&period; Adhesives&comma; resins and their catalysts and hardeners shall be crated or boxed separately and noted as such to facilitate their movement to a dry indoor storage facility&period;

Storage of products&colon; All materials shall be carefully handled to prevent them from abrasion&comma; cracking&comma; chipping&comma; twisting&comma; other deformations&comma; and other types of damage&period; Store items in an enclosed area and free from contact with soil and water&period; Store adhesives&comma; resins and their catalysts and hardeners in a dry&comma; indoor storage facility&comma; between 70 and 85 degrees fahrenheit &lpar;21 to 29 degrees celsius&rpar; until they are required&period;

1&period;5 quality assurance

All items to be provided under this section shall be furnished only by manufacturers having a minimum of five &lpar;5&rpar; yearsexperience in the design and manufacture of similar products and systems&period; Additionally&comma; if requested&comma; a record of at least five &lpar;5&rpar; previous&comma; separate&comma; similar successful installations in the last five &lpar;5&rpar; years shall be provided&period;

Manufacturer shall offer a 3 year limited warranty on all FRP products against defects in materials and workmanship&period;

Manufacturer shall be certified to the ISO 9001-2008 standard&period;

Manufacturer shall provide proof of certification from at least two other quality assurance programs for its facilities or products &lpar;dnv&comma; ABS&comma; uscg&comma; aarr&rpar;&period;

All FRP items furnished under this section shall be composed of fiberglass reinforcements and resins in qualities&comma; quantities&comma; properties&comma; arrangements and dimensions as necessary to meet the design requirements and dimensions as specified in the contract documents&period;

All finished surfaces of FRP items and fabrications shall be smooth&comma; free of voids and without dry spots&comma; cracks&comma; crazes or unreinforced areas&period; All glass fibers shall be saturated with resin to protect against their exposure due to wear or weathering&period;

Manufacture&colon; Grating components shall be high strength and high stiffness pultruded elements having a maximum of 80&percnt; and a minimum of 75&percnt; glass content &lpar;by weight&rpar; of continuous roving and continuous strand mat fiberglass reinforcements&period; Bearing bars shall be interlocked with a two piece cross rod system&comma; adhesive bonded&comma; to provide a mechanical and chemical lock&period; Cross rods should be below the walking surface of the grating&period; Gratings with cross rods that are flush with the walking surface are excluded&period;

Nonslip surface&colon; Grating shall be provided with a quartz grit&comma; adhesively bonded and baked to the top surface of the finished grating product&period;

Coast guard rating&colon; All gratings and treads shall have u&period; S&period; Coast guard approval and be certified to a level 2 in accordance with the u&period; S&period; Coast guard draft memorandum&colon; Policy file memorandum on the use of fiber reinforced plastic &lpar;FRP&rpar; deck grating &lpar;dated 2 February 1998&rpar;

Fire rating&colon; Coated and uncoated grating shall have a tested flame spread index of 25 or less in accordance with the ASTM e84 tunnel test&period; Gratings shall not burn past the 25 mm reference mark and will be classified hb per ASTM d635&period; Manufacturer may be required to provide certification of ASTM e84 test on grating panels from an independent testing laboratory&period; Test data shall be from full scale testing of actual production grating&comma; of the same type and material supplied on the project&period;

Gratings shall be classified as 94V-o by the UL 94 test for flammability and pass the ASTM d2863 test for 100&percnt; oxygen concentration&period; The phenolic grating shall also be tested in accordance with ASTM e662 with a non-flaming max ds &lpar;corrected&rpar; of 1&period;8 or less and ds&commat;4 min of&period; 22&semi; Flaming max ds &lpar;corrected&rpar; of 2&period;7 or less and ds&commat;4 min of&period; 5&period;

Resin system&colon; The resin system used in the manufacture and assembly of the grating shall be 100 &percnt; phenolic&period; Manufacturer may be required to submit corrosion data from tests performed on actual grating products in standard chemical environments&period;

Color&colon; Natural brown

Depth&colon; 1-1&sol;2" deep load bars with a tolerance of plus or minus 1&sol;32"&period;

Gratings that will be installed outdoors in direct UV shall receive a secondarily applied UV coating based on a 2 part aliphatic polyurethane system&period;

Substitutions&colon; Other products of equal strength&comma; stiffness&comma; corrosion resistance and overall quality may be submitted with the proper supporting data to the engineer for approval&period;

Nosing shall be osha compliant and formed by placing two load bars together&comma; locking into place with standard notched and epoxied tie bars&period; Nosing shall be coated a different color than grating so as to be readily discernable to persons when descending a stair as required by osha&period; Nonslip surface&colon; Tread shall be provided with quartz grit&comma; adhesively bonded and baked to the top surface of the finished tread&period; Load&sol;deflection&colon; Treads shall meet manufacturer's published safe recommended loadings with deflection not to exceed the following&colon;

Concentrated line load placed at the center of the stair tread over a 40" clear span&colon; 500 pounds&comma; with a maximum deflection of 0&period;16"&period; Note&colon; Maximum span approved by the coast guard is 44"&period;

2&period;5 grating & tread fabrication

Measurements&colon; Grating and treads supplied shall meet the minimum dimensional requirements as shown or specified&period; The contractor shall provide and&sol;or verify measurements in field for work fabricated to fit field conditions as required by grating manufacturer to complete the work&period; Determine correct size and locations of required holes or cutouts from field dimensions before grating fabrication&period;

Layout&colon; Each grating section shall be readily removable&comma; except where indicated on drawings&period; Manufacturer to provide openings and holes where located on the contract drawings&period; Grating supports shall be provided at openings in the grating by contractor where necessary to meet load&sol;deflection requirements specified herein&period; Grating openings which fit around protrusions &lpar;pipes&comma; cables&comma; machinery&comma; etc&period; &rpar; shall be discontinuous at approximately the centerline of opening so each section of grating is readily removable&period;

Sealing&colon; All shop fabricated grating cuts shall be sealed to provide maximum fire and corrosion resistance&period; All field fabricated grating cuts shall be coated similarly by the contractor in accordance with the manufacturer's instructions&period;

Hardware&colon; Type 316 stainless steel holddown clips shall be provided and spaced at a maximum of four feet apart with a minimum of four per piece of grating&comma; or as recommended by the manufacturer&period;

Part 3 execution

3&period;1 inspection

Shop inspection is authorized as required by the owner and shall be at owner's expense&period; The fabricator shall give ample notice to contractor prior to the beginning of any fabrication work so that inspection may be provided&period; The grating shall be as free&comma; as commercially possible&comma; from visual defects such as foreign inclusions&comma; delamination&comma; blisters&comma; resin burns&comma; air bubbles and pits&period;